Literature Reference: 青鸟自爱玉山禾，仙禽徒贵华亭露。朴𣙙危巢向暮时，毰毸饱腹蹲枯枝。游童挟弹一麾肘，臆碎羽分人不悲。天生众禽各有类，威凤文章在仁义。鹰隼仪形蝼蚁心，虽能戾天何足贵。—— 《琴曲歌辞 飞鸢操》 The green bird loves the grain of Jade Mountain, while the immortal bird values the dew of Huating. At dusk, the simple nest faces danger, yet the bird sits content on a dry branch. A child with a slingshot hits it, and though its feathers scatter, no one mourns. Each bird has its nature; the phoenix embodies benevolence and righteousness. The hawk and falcon, though fierce, are unworthy of admiration. Source from 'Qinqi Geci Feiyuan Cao'.